350 at 5% interest for 4 years simple interest at the to the nearest cent

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?

Use the elimination method to solve the systems of equations.choose the correct ordered pair. 7x+4y=39

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d? are he re